When the Substances in the Equation Below Are at Equilibrium

question 30

Multiple Choice

When the substances in the equation below are at equilibrium at pressure P and temperature T, how can the equilibrium be shifted to favor the products? CuO(s) + H₂(g) Cu(s) + H₂O(g)
Change in enthalpy = -2.0 kJ.

• A) Increase the pressure by adding an inert gas such as nitrogen.
• B) Allow some gas to escape at constant pressure and temperature.
• C) Decrease the temperature.
• D) Increase the pressure by means of a moving piston at constant temperature.
• E) Add a catalyst.

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